Electrocatalytic Determination of Uric Acid with the Poly(Tartrazine)-Modified Pencil Graphite Electrode in Human Serum and Artificial Urine

被引：19

作者：

Liv, Lokman ^{[1
]}

Portakal, Merve ^{[1
,2
]}

Cukur, Meryem Sila ^{[1
,3
]}

Topacli, Beyza ^{[1
,4
]}

Uzun, Berkay ^{[1
,3
]}

机构：

[1] TUBITAK UME, Natl Metrol Inst, Electrochem Lab, Chem Grp,Sci & Technol Res Council Turkey, TR-41470 Gebze, Kocaeli, Turkiye

[2] Pamukkale Univ, Fac Technol, Dept Biomed Engn, TR-20160 Denizli, Turkiye

[3] Kocaeli Univ, Fac Technol, Dept Biomed Engn, TR-41380 Izmit, Kocaeli, Turkiye

[4] TOBB Univ Econ & Technol, Sch Engn, Dept Biomed Engn, TR-06560 Ankara, Turkiye

来源：

ACS OMEGA | 2023年 / 8卷 / 38期

关键词：

SIMULTANEOUS ELECTROCHEMICAL DETERMINATION; GLASSY-CARBON ELECTRODE; ASCORBIC-ACID; SELECTIVE DETERMINATION; GOLD NANOPARTICLES; DOPAMINE; EPINEPHRINE; GRAPHENE; ELECTROPOLYMERIZATION; SALIVA;

D O I：

10.1021/acsomega.3c02561

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel electrocatalytic sensing strategy was built for uric acid (UA) determination with an exceptionally developed poly(tartrazine)-modified activated pencil graphite electrode (pTRT/aPGE) in human serum and artificial urine. The oxidation signal of UA at 275 mV in pH 7.5 phosphate buffer solution served as the analytical response. Cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, energydispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy were used to characterize the sensing platform, which was able to detect 0.10 mu M of UA in the ranges of 0.34-60 and 70-140 mu M. The samples of human serum and artificial urine were analyzed by both the pTRT/aPGE and the uricase-modified screen-printed electrode. The results were statistically evaluated and compared with each other within the confidence level of 95%, and no significant difference between the results was found.

引用

页码：34420 / 34430

页数：11

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